Construction engineering detection rebound apparatus
By designing the slide block, slide rod, and slide sleeve structure, the problem of uneven distribution of test points in the rebound hammer was solved, achieving uniform distribution of test points and improving accuracy. This simplified the operation process and improved the testing accuracy.
Patent Information
- Application Number
- CN202423030461.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Existing rebound hammers require manual drawing of a 16-grid when testing concrete strength, and the manual alignment accuracy is poor, resulting in uneven distribution of test points and reduced test accuracy.
A rebound hammer for building engineering testing was designed. The rebound hammer body can be adjusted in position through a sliding base, sliding rod and sliding sleeve structure, avoiding the need to draw a grid and ensuring the uniform distribution of test points. The combined movement of the sliding column and sliding sleeve can realize longitudinal and lateral adjustment. Combined with the lifting device, the stability and accuracy of the test points are ensured.
This achieved a uniform distribution of test points on the rebound hammer, improved testing accuracy, simplified the operation process, and enhanced the accuracy of the test.
Smart Images
Figure CN223565480U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of rebound hammer technology, specifically a rebound hammer for building engineering testing. Background Technology
[0002] A rebound hammer uses a spring-driven hammer to strike the concrete surface, generating an instantaneous elastic deformation and restoring force. The hammer then causes a pointer to rebound, indicating the rebound distance, or rebound value. Currently, the most widely used rebound hammer in China is the needle-type rebound hammer, which is widely used in concrete compressive strength testing during construction, municipal engineering, and road and bridge construction.
[0003] Before testing the concrete strength of a building, existing rebound hammers require drawing a 16-square grid at the test location using a marker pen. The rebound hammer is then used to align with the small squares in the grid. Drawing the grid is cumbersome, and the accuracy of manual alignment is poor, resulting in an uneven distribution of test points and reducing the accuracy of the test. Summary of the Invention
[0004] The purpose of this invention is to provide a rebound hammer for building engineering testing with uniform test points. The rebound hammer body can perform stable testing at different locations, and the test points are evenly distributed, thus improving the testing accuracy.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a rebound hammer for building engineering testing is provided, including a base, a support rod fixedly connected to the top of the base, a slide block fixedly connected to the top of the support rod, a sliding column movably connected to the top of the slide block, a sliding sleeve movably connected to the outer side of the sliding column, a lifting device fixedly connected to the lower part of the sliding sleeve, and a rebound hammer body fixedly connected to the bottom end of the lifting device. The slide block includes a connecting column fixedly connected to the top of the support rod, a slide rail fixedly connected to the top of the connecting column, a sliding groove provided at the top of the slide rail, and an insertion port provided on the inner side of the slide rail.
[0006] Optionally, the base includes a seat body, the seat body has a movable groove inside, a movable plate is movably connected inside the seat body, a movable wheel is movably connected to the inner side of the movable plate, a handle is fixedly connected to the top of the movable plate, and a brush is fixedly connected to the lower part of the movable plate.
[0007] Optionally, the support rod includes an upper rod and a lower rod. A rotating mechanism is fixedly connected to the right side of the top of the upper rod, the right side of the bottom of the lower rod, and the left side between the upper and lower rods. The rotating mechanism includes a rotating cylinder and a rotating column. The rotating cylinder is rotatably connected to the rotating column. The right side of the top of the upper rod and the left side of the bottom of the upper rod are fixedly connected to the rotating cylinder. The left side of the top of the lower rod and the right side of the bottom of the lower rod are fixedly connected to the rotating column. The rotating column inside the rotating cylinder on the right side of the top of the upper rod is fixedly connected to a connecting column. The rotating cylinder outside the rotating column on the right side of the bottom of the lower rod is fixedly connected to a base. An insert block is movably connected inside the upper rod. A first spring is fixedly connected between the insert block and the upper rod.
[0008] Optionally, the sliding column includes a column body movably connected to the top of the slide rail. The top of the column body is provided with a fixing groove. Slider blocks are fixedly connected to both sides of the lower part of the column body. Fixing blocks are movably connected to both sides of the inner part of the column body. A second spring is fixedly connected between the fixing blocks and the column body. A pull rod is fixedly connected to the side of the fixing block away from the second spring.
[0009] Optionally, the sliding sleeve includes a sleeve body movably connected to the outside of the column body, a fixed cylinder fixedly connected to the upper part of the sleeve body, an insert post movably connected to the inside of the fixed cylinder, a third spring fixedly connected between the insert post and the sleeve body, and a pull block fixedly connected to the top of the insert post.
[0010] Optionally, the lifting device includes an electric telescopic rod fixedly connected to the lower part of the sleeve. The bottom end of the electric telescopic rod is fixedly connected to a cylinder. The cylinder is internally threaded with a bolt. A fixing plate is movably connected to the outside of the bolt. An anti-slip pad is fixedly connected to the inside of the fixing plate.
[0011] Compared with the prior art, the technical effects of this utility model are as follows:
[0012] This invention, by setting up a sliding base, sliding rod, and sliding sleeve, facilitates the adjustment of the position of the rebound hammer body, making the distribution of test points on the rebound hammer body more uniform, and eliminating the need to draw a sixteen-grid. In use, by pressing the pull rod towards the center, the fixing block is disengaged from the insertion port, causing the sliding column to move longitudinally on the sliding base. By pulling the pull block upward, the insertion column is disengaged from the fixing slot, thereby causing the sliding sleeve to move laterally outside the sliding column. This allows for adjustment of the position of the rebound hammer body, and the movement allows the insertion column to be inserted into different fixing slots, and the fixing block to be inserted into different insertion ports. This enables the rebound hammer body to perform stable testing at different positions, and the distribution of test points is more uniform, improving testing accuracy. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a cross-sectional three-dimensional structural diagram of the base of this utility model;
[0016] Figure 3 This is a cross-sectional three-dimensional structural diagram of the support rod of this utility model;
[0017] Figure 4 This is a three-dimensional structural diagram of the slide block of this utility model;
[0018] Figure 5 This is a cross-sectional three-dimensional structural diagram of the sliding column of this utility model;
[0019] Figure 6 This is a cross-sectional three-dimensional structural diagram of the sliding sleeve and lifting device of this utility model.
[0020] In the diagram: 1. Base; 101. Seat body; 102. Moving groove; 103. Moving wheel; 104. Moving plate; 105. Handle; 106. Brush; 2. Support rod; 201. Rotating mechanism; 2011. Rotating cylinder; 2012. Rotating column; 203. Upper rod; 204. First spring; 205. Insert block; 206. Lower rod; 3. Slide seat; 301. Slide rail; 302. Insertion port; 303. Slide groove; 304. Connecting column; 4. 401. Sliding column; 402. Column body; 403. Fixing groove; 404. Second spring; 405. Fixing block; 406. Sliding block; 5. Sliding sleeve; 501. Sleeve body; 502. Insert column; 503. Third spring; 504. Fixing cylinder; 505. Pulling block; 6. Lifting device; 601. Electric telescopic rod; 602. Cylinder body; 603. Bolt; 604. Fixing plate; 605. Anti-slip pad; 7. Rebound spring body. Detailed Implementation
[0021] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0022] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0023] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0025] Reference Figures 1 to 6 The present invention provides a rebound hammer for testing building concrete. The rebound hammer includes a base 1, a support rod 2 fixedly connected to the top of the base 1, a slide block 3 fixedly connected to the top of the support rod 2, a sliding column 4 movably connected to the top of the slide block 3, a sliding sleeve 5 movably connected to the outer side of the sliding column 4, a lifting device 6 fixedly connected to the lower part of the sliding sleeve 5, and a rebound hammer body 7 fixedly connected to the bottom end of the lifting device 6. The rebound hammer body 7 is used to test the strength of building concrete. The slide block 3 includes a connecting column 304 fixedly connected to the top of the support rod 2, a slide rail 301 fixedly connected to the top of the connecting column 304, a sliding groove 303 on the top of the slide rail 301, and an insertion port 302 on the inner side of the slide rail 301. The insertion port 302 is used for inserting a fixing block 404, and the sliding groove 303 is used for moving the sliding column 4.
[0026] Furthermore, the base 1 includes a seat body 101, with a moving groove 102 inside the seat body 101. A moving plate 104 is movably connected inside the seat body 101. The moving groove 102 is used for the movement of the moving plate 104. A moving wheel 103 is movably connected to the inner side of the moving plate 104. The moving wheel 103 can rotate inside the moving plate 104, making the moving plate 104 move more easily. A handle 105 is fixedly connected to the top of the moving plate 104, and a brush 106 is fixedly connected to the lower part of the moving plate 104. The movement of the moving plate 104 allows the brush 106 to clean the test surface, ensuring the test surface is clean and tidy, thereby ensuring test accuracy.
[0027] Furthermore, the support rod 2 includes an upper rod 203 and a lower rod 206. A rotating mechanism 201 is fixedly connected to the right side of the top of the upper rod 203, the right side of the bottom of the lower rod 206, and the left side between the upper rod 203 and the lower rod 206. The rotating mechanism 201 includes a rotating cylinder 2011 and a rotating column 2012. The rotating cylinder 2011 and the rotating column 2012 are rotatably connected. The right side of the top and the left side of the bottom of the upper rod 203 are fixedly connected to the rotating cylinder 2011, and the left side of the top and the right side of the bottom of the lower rod 206 are fixedly connected to the rotating column 2012. The upper rod 203 and the lower rod 206 can rotate relative to each other. The rotating column 2012 inside the rotating cylinder 2011 on the right side of the top of the upper rod 203 is fixedly connected to a connecting column 304, and the upper rod 203 and the connecting column 304 can rotate relative to each other. The rotating cylinder 2011 on the outer side of the rotating column 2012 at the bottom right of the lower rod 206 is fixedly connected to the base 101. The lower rod 206 and the base 101 can rotate relative to each other. The upper rod 203 is movably connected to the insert block 205. The insert block 205 and the upper rod 203 are fixedly connected to the first spring 204. The insert block 205 can rise and fall inside the upper rod 203. The lower rod 206 has a slot for inserting the insert block 205. By pulling the insert block 205 upward, it is disengaged from the slot inside the lower rod 206, so that the upper rod 203 and the lower rod 206, the upper rod 203 and the connecting column 304, and the lower rod 206 and the base 101 can rotate. By rotating, the support rod 2 can be folded up, thereby reducing its space occupation and making it easy to store.
[0028] Furthermore, the sliding column 4 includes a column 401 movably connected to the top of the slide rail 301. The top of the column 401 is provided with a fixing groove 402 for inserting the column 502. Slider 405s are fixedly connected to both sides of the lower part of the column 401. The slider 405s are used to move in the moving groove 102. Fixing blocks 404s are movably connected to both sides inside the column 401. A second spring 403 is fixedly connected between the fixing block 404 and the column 401. A pull rod 406 is fixedly connected to the side of the fixing block 404 away from the second spring 403. By pulling the pull rod 406 towards the middle, the fixing block 404 is disengaged from the insertion port 302, so that the sliding column 4 moves longitudinally on the slide block 3. This allows the fixing block 404 to be inserted into different insertion ports 302, thereby allowing longitudinal adjustment of the position of the rebound spring body 7.
[0029] Furthermore, the sliding sleeve 5 includes a sleeve 501 movably connected to the outside of the column 401. A fixed cylinder 504 is fixedly connected to the upper part of the inside of the sleeve 501. An insert post 502 is movably connected inside the fixed cylinder 504. The insert post 502 can move up and down inside the fixed cylinder 504. A third spring 503 is fixedly connected between the insert post 502 and the sleeve 501. A pull block 505 is fixedly connected to the top of the insert post 502. By pulling the pull block 505 upward, the insert post 502 is disengaged from the fixed groove 402, thereby causing the sliding sleeve 5 to move laterally outside the sliding column 4. This allows for lateral adjustment of the position of the rebound hammer body 7. The movement allows the insert post 502 to be inserted into different fixed grooves 402, and the fixed block 404 to be inserted into different sockets 302. This enables the rebound hammer body 7 to perform stable testing at different positions, and the distribution of test points is more uniform, improving testing accuracy.
[0030] Furthermore, the lifting device 6 includes an electric telescopic rod 601 fixedly connected to the lower part of the sleeve 501. By controlling the electric telescopic rod 601, the rebound hammer body 7 is moved up and down to test the strength of the concrete. The bottom end of the electric telescopic rod 601 is fixedly connected to a cylinder 602. The cylinder 602 is internally threaded with a bolt 603. The outer side of the bolt 603 is movably connected to a fixing plate 604. The inner side of the fixing plate 604 is fixedly connected to an anti-slip pad 605. By rotating the bolt 603 forward and backward, it can move back and forth inside the cylinder 602, driving the fixing plate 604 so that the anti-slip pad 605 can press against the outer side of the rebound hammer body 7, thereby fixing it.
[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A construction engineering detection rebound hammer comprising a base (1), characterized in that: The top of the base (1) is fixedly connected with a support rod (2), the top of the support rod (2) is fixedly connected with a sliding seat (3), the top of the sliding seat (3) is movably connected with a sliding column (4), the outer side of the sliding column (4) is movably connected with a sliding sleeve (5), the lower part of the sliding sleeve (5) is fixedly connected with a lifting device (6), the bottom end of the lifting device (6) is fixedly connected with a rebound instrument body (7), the sliding seat (3) comprises a connecting column (304) fixedly connected at the top of the support rod (2), the top of the connecting column (304) is fixedly connected with a sliding rail (301), the top of the sliding rail (301) is provided with a sliding groove (303), and the inner side of the sliding rail (301) is provided with a socket (302).
2. A construction engineering detection rebound hammer according to claim 1, characterized in that: The base (1) comprises a seat body (101), the inside of the seat body (101) is provided with a moving groove (102), the inside of the seat body (101) is movably connected with a moving plate (104), the inner side of the moving plate (104) is movably connected with a moving wheel (103), the top of the moving plate (104) is fixedly connected with a handle (105), and the lower part of the moving plate (104) is fixedly connected with a brush (106).
3. The construction engineering detection rebound hammer according to claim 1, wherein: The support rod (2) comprises an upper rod (203) and a lower rod (206), the right side of the top of the upper rod (203), the right side of the bottom end of the lower rod (206) and the left side between the upper rod (203) and the lower rod (206) are fixedly connected with rotating mechanisms (201), the rotating mechanism (201) comprises a rotating cylinder (2011) and a rotating column (2012), the rotating cylinder (2011) is rotatably connected with the rotating column (2012), the right side of the top of the upper rod (203) and the left side of the bottom end are fixedly connected with the rotating cylinder (2011), the left side of the top of the lower rod (206) and the right side of the bottom end are fixedly connected with the rotating column (2012), the rotating column (2012) inside the rotating cylinder (2011) on the right side of the top of the upper rod (203) is fixedly connected with the connecting column (304), the rotating cylinder (2011) outside the rotating column (2012) on the right side of the bottom end of the lower rod (206) is fixedly connected with the seat body (101), and the inside of the upper rod (203) is movably connected with an insertion block (205).
4. The construction engineering detection rebound hammer according to claim 1, characterized in that: The sliding column (4) comprises a column body (401) movably connected at the top of the sliding rail (301), the top of the column body (401) is provided with a fixed groove (402), the lower part of the column body (401) is fixedly connected with sliding blocks (405) on both sides, the inside of the column body (401) is movably connected with fixing blocks (404) on both sides, the fixing blocks (404) and the column body (401) are fixedly connected with second springs (403), and the side, away from the second springs (403), of the fixing blocks (404) is fixedly connected with pull rods (406).
5. The construction engineering detection rebound hammer according to claim 1, wherein: The sliding sleeve (5) comprises a sleeve body (501) movably connected outside the column body (401), a fixed cylinder (504) is fixedly connected to the top of the inside of the sleeve body (501), a plug column (502) is movably connected to the inside of the fixed cylinder (504), a third spring (503) is fixedly connected between the plug column (502) and the sleeve body (501), and a pull block (505) is fixedly connected to the top end of the plug column (502).
6. The construction engineering detection rebound hammer according to claim 1, wherein: The lifting device (6) comprises an electric telescopic rod (601) fixedly connected to the lower part of the sleeve body (501), a cylinder body (602) is fixedly connected to the bottom end of the electric telescopic rod (601), a screw bolt (603) is screwedly connected to the inside of the cylinder body (602), a fixed plate (604) is movably connected to the outside of the screw bolt (603), and a non-slip pad (605) is fixedly connected to the inside of the fixed plate (604).